CAJ | 학술논문

基于 AT89S51单片机开发了温度控制采集显示系统,着重介绍了系统核心硬件设计和软件设计.利用 LM35温度传感器采集温度、经 LM358放大10倍后输入到 A/D 采样电路,由TLC549将数字值传送给 AT89S52单片机,最后由单片机驱动数码管显示温度.测试结果表明,在外部环境温度变化较大时该系统响应时间短,灵敏度较高,工作稳定可靠.
기우 AT89S51단편궤개발료온도공제채집현시계통,착중개소료계통핵심경건설계화연건설계.이용 LM35온도전감기채집온도、경 LM358방대10배후수입도 A/D 채양전로,유TLC549장수자치전송급 AT89S52단편궤,최후유단편궤구동수마관현시온도.측시결과표명,재외부배경온도변화교대시해계통향응시간단,령민도교고,공작은정가고.
A temperature control acquisition and display system was developed based on AT 89S51 single-chip microcomputer(SCM).The core hardware design and software design were mainly discussed .The system uses LM35 temperature sensor to collect temperature .The acquisition temperature was input into the A /D sam-pling circuit by magnified 10 times through LM358, the digital value was passed to the AT89S51 SCM by TLC549 , and the digital tube was used to display temperature .Furthermore, the results demonstrate the system have short response time, high sensitivity, stable and reliable operation when large temperature changes in the external environment.